I have a new website with more information about the reamers and how to order them. Find that information and more at timmanney.com.
I make a 6 degree tapered reamer for creating the tapered joints that hold Windsor chairs together. The price of the reamer is $140. I fill orders from a wait list and wait times are usually 6-8 weeks, but occasionally I have some in stock.
To order just send me an email expressing your interest in purchasing a reamer.
For more specific information about these tools.
Peruse the links for pictures and some descriptions and don't hesitate to email me.